Ceramic article and method of manufacturing a ceramic article
AssigneeGeneral Electric Company
InventorsCathleen Ann Hoel, Clifford Takashi Tanaka, Michael Joseph O'Brien, Sara Kelly Peterson, Jose A. Sanchez
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Abstract
Methods of manufacturing ceramic articles are presented. For example, a method of manufacturing a ceramic article may include layering a ceramic material in a plurality of layers along a build direction, the plurality of layers forming a green component; firing the green component at a first temperature to form a porous sintered component; infiltrating the porous sintered component with a preceramic material to form an infiltrated component; and firing the infiltrated component at a second temperature to form the ceramic article.
Claims20
A method of manufacturing a ceramic article comprising:
- layering a ceramic material in a plurality of layers along a build direction, the plurality of layers forming a green component;
- firing the green component at a first temperature to form a porous sintered component, the porous sintered component having a first density and a first specific strength;
- infiltrating the porous sintered component with a preceramic material to form an infiltrated component;
- and
- firing the infiltrated component at a second temperature to form the ceramic article, the ceramic article having a second density and a second specific strength,
- wherein the second density of the ceramic article is less than about 20% greater than the first density of the porous sintered component, and
- wherein the second specific strength of the ceramic article is at least about 45% greater than the first specific strength of the porous sintered component.
A method of manufacturing a ceramic article comprising:
- three-dimensional (3D) printing a ceramic material along a build direction to form a green component, the green component comprising ceramic particles and a binder;
- firing the green component at a first temperature to form a porous sintered component, the porous sintered component having a first density and a first specific strength;
- infiltrating the porous sintered component with a polysiloxane to form an infiltrated component;
- and
- firing the infiltrated component at a second temperature to form the ceramic article, the ceramic article having a second density and a second specific strength,
- wherein the second density of the ceramic article is less than about 20% greater than the first density of the porous sintered component, and
- wherein the second specific strength of the ceramic article is at least about 45% greater than the first specific strength of the porous sintered component.
Dependencies are inferred from the claim text.